JPH05176951A - Throw-way foot warmer - Google Patents

Abstract

PURPOSE:To prevent a low-temp. burn, to increase an exothermic temp. and to prolong the time for duration of heat generation by putting a powder mixture composed of metallic powder and the powder of an oxidation accelerator thereof into the inside of a heating bag, and laminating a soft sheet having a low thermal conductivity, a tacky adhesive coating layer and release paper thereof on the back surface of the bag, thereby constituting the heating bag. CONSTITUTION:The throw-away foot warmer is constituted of the heating bag 10 of an inside bag into which the powder mixture 16 composed of iron powder, water, salt, active carbon powder and wood flour is put, and an outside bag 20 vacuum packing this heating bag 10. The surface part of the heating bag 10 is constituted of an air perssable sheet 11 made of a non-woven fabric and the back part thereof is constituted of a soft sheet 12 made of foamed polyethylene. An acrylic resin tacky adhesive is applied on the surface of the sheet 12 to form a tacky adhesive coating layer 14 and the release paper 15 is stuck to the surface of the coating layer 14. The outside bag 20 is unsealed and the heating bag 10 is taken out at the time of use. This heating bag is stuck to a sock part 31 corresponding to the plantar arch 41 of the foot 40 of sock 30 and the sock part 32 corresponding to the toe 42 from the instep of the foot 40, and thereafter shoes 50 are worn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pocket warmer for warming a foot which can be used by warming it by attaching it to a foot or sock.

[0002]

2. Description of the Related Art A conventional used foot warming pocket furnace is
An inner bag containing a mixed powder containing iron powder which is oxidized by oxygen in the air to generate heat and powder of the oxidation promoter, the surface of which is made of a breathable sheet. The back side of the sheet is made of a non-breathable sheet, the back side of the non-breathable sheet is coated with a pressure sensitive adhesive, and the peelable release paper is attached to the surface of the coating layer of the pressure sensitive adhesive. And a non-breathable outer bag obtained by vacuum packing the inner bag. The inner bag taken out from the outer bag has a horseshoe-shaped (U-shaped) rim and a width of about 7 cm and a length of about 7 cm. A 9 cm thin bag was attached to the bottom of the toes of the socks to warm the feet, but it had the following drawbacks.

(1) The inner bag attached to the sole of the sock does not cause low-temperature burns on the sole of the foot, so the maximum temperature of the inner bag that has generated heat is set to a low temperature of about 38 ° C and an average temperature of about 35 ° C. Since there is less iron powder mixed in the inner bag, the duration of heating is shortened to about 5 hours and it is not possible to warm the foot for at least 8 hours.

(2) The adhesive applied to the inner bag has a weak adhesive force because it needs to be removed from the socks when the heat is finished. It was easy for the inner bag to slip from the position where the socks were attached or to be separated from the socks when was added.

(3) In the inner bag, the position where it is attached to the sock comes into contact with the portion of the sole where the force is applied, so when walking with the shoe on, a feeling of foreign matter, discomfort, and scratches on the sole are generated. Due to such reasons, it was difficult to walk for a long time, perform intense exercise, and work.

(4) Since the inner bag is made of a horseshoe-shaped outer edge having a certain size, it cannot be used according to the size of the foot and the size of the sock.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to use a thin sock or bare foot without causing a low temperature burn, and nevertheless capable of warming the foot for a long time of at least 8 hours. It provides a warm-hearted warm hearth.

Another object of the present invention is to use a sock or a bare foot which has a weak adhesive force, and which is used from a sticking position of the sock or foot even when walking for a long time. The present invention provides a pocket warmer for warming feet that does not shift or separate.

Still another object of the present invention is that even when it is attached to a sock or a foot, it does not make the inside of the shoe cramped and does not give a foreign body feeling, an unpleasant feeling, a scratch, etc. to the skin of the foot, and It provides a warm-hearted pocket warmer that can withstand walking for hours.

Further, the object of the present invention is to cope with the size of socks and feet, and is adapted to the arch of the foot or the instep of the foot to the toe, or the part corresponding to the arch of the foot of the sock, or the part corresponding to the instep of the foot. It provides a warm-hearted pocket warmer.

[0011]

In order to achieve the above-mentioned object, the use foot warming pocket furnace of the present invention has, inside, a metal powder which is oxidized by oxygen in the air to generate heat, and a powder of its oxidation promoter. An inner bag containing a mixed powder containing as a main component, wherein one part of the bag is made of a breathable sheet, and the other part of the bag is made of a flexible sheet with reduced heat conduction, Is coated with a pressure sensitive adhesive, and the surface of the coating layer of the pressure sensitive adhesive is coated with a peelable release paper (hereinafter,
It is called a heating bag. ) And a non-breathable bag in which the heating bag is vacuum-packed (hereinafter referred to as an outer bag), the heating bag is the arch of the foot or the arch of the toe or socks from the instep of the foot. The part corresponding to the above or the part corresponding to the toe from the instep part of the sock is attached so that the foot can be warmed.

In the present invention, the breathable sheet used for the heating bag is made of non-woven fabric or paper which allows air to easily pass through, and the soft sheet with reduced heat conduction is a soft sheet made of foamed synthetic resin, Non-woven soft sheets, felt soft sheets, etc. are used.

As the mixed powder to be put in the heating bag, metal powder, especially iron powder containing ferrosoferric oxide, water, salt powder such as salt, powder of oxidation promoter such as activated carbon, and wood Powder, vermiculite powder, etc. are used.

In the heating bag, oxygen in the air causes the metal powder to oxidize and generate heat.
Although the maximum exothermic temperature is about 65 ° C. and the maximum exothermic duration is about 20 hours, it varies depending on the mixing ratio of each component.

A polyethylene laminated polyester film or the like is used as the non-breathable outer bag.

Further, in the present invention, among the heating bags, those having a half-moon shape or an elliptical shape having a size that can be attached to the arch of the foot include the arch of the foot or the sock portion corresponding to the arch of the foot. It is also possible to attach one or more to the sock portion corresponding to the instep to the toe or the instep to the toe, and to attach it regardless of the size of the foot or the size of the sock.

Among the heating bags, oval-shaped ones having a size that can be attached to both the small instep and the toe and the large instep to the toe have the size of the foot or the size of the sock. Regardless, it can be attached from the instep to the toe or from the instep to the sock portion corresponding to the toe.

[0018]

Embodiment 1 An embodiment of the present invention is shown in FIGS. 1, 2, 3 and 4.

The use-use foot warming pocket furnace of this example has a heating bag 10 as an inner bag in which a mixed powder 16 of iron powder, water, salt, activated carbon powder and wood powder is put inside, and the heating bag 10 is vacuumed. It consists of a packed outer bag 20.

The heating bag 10 comprises a breathable sheet 11 made of a non-woven fabric on the front side of the bag and a soft polyethylene foam sheet 12 on the back side. The back side of the sheet 12 is coated with an acrylic resin adhesive. A peelable release paper 15 is attached to the surface of the adhesive coating layer 14.

The heating bag 10 is a half-moon type bag having a maximum width of about 3 cm, a maximum length of about 6 cm, and a maximum thickness of about 4 mm.
It is sized so that it can be attached to the arch part of the foot from adults to dwarfs.

[0022]

The use-use foot warming pocket furnace of the present embodiment has the above-mentioned structure. Therefore, after the vacuum-packed outer bag 20 is torn and opened, the warming bag 10 as the inner bag is taken out, and as shown in FIGS. As shown in FIG. 1, one of the heating bags 10 is attached to the sock portion 31 corresponding to the arch 41 of the foot 40 of the sock 30, and two of the heating bags 10 are placed from the upper part of the foot 40 to the toe 42. After sticking to the corresponding sock portion 32, the shoe 50 is worn.

Three heating bags 10 attached to the socks 30
Is heated by the air in the shoe 50 to warm the foot.

[0024]

Second Embodiment A second embodiment of the present invention is shown in FIGS. 5, 6 and 7.

The warm-up pocket for warming up the feet in this embodiment is an inner bag heating bag 1 containing the mixed powder 16B in the same proportion as in the first embodiment.
0B and an outer bag 20B obtained by vacuum packing the heating bag 10B.

The heating bag 10B has a breathable sheet 11B made of a non-woven fabric on the front side of the bag and a vinyl chloride sheet 1 on the back side of the bag.
A soft polyester foam sheet 12B adhered to 3B, an acrylic resin adhesive is applied to the back surface of the sheet 12B, and a peelable release paper 15B is attached to the surface of the adhesive application layer 14B. ..

The heating bag 10B is an oblong shape having a major axis of about 6 cm, a minor axis of about 3 cm, and a maximum thickness of about 4 mm, and is a size that can be attached to the arch portion of the foot of adults to dwarfs. ..

[0028]

The function of the single-use warming pocket warmer of the present embodiment is as described above, and therefore the inner bag heating bag 10B taken out from the outer bag 20B is used.
As shown in FIG. 7, one of the heating bags 10B has 40 feet
Attached to the arch 41 of the, two of the heating bag 10B, foot 4
After sticking from the 0 instep to the toes 42, socks 30 are put on and shoes 50 are put on.

The three heating bags 10B attached to the foot 40 are
The air in the shoes 50 and the socks 30 will generate heat to warm the foot.

[0030]

Second Embodiment A third embodiment of the present invention is shown in FIGS. 8 and 9.

The single-use warming pocket warmer used in this example is an inner bag heating bag 10C in which mixed powder (not shown) in the same proportion as in Example 1 is placed, and the heating bag 10C is vacuum-packed. It consists of the same outer bag (not shown) as in Example 1.

The heating bag 10C has a major axis of about 7 cm and a minor axis of about 5 cm.
cm, and an elliptical shape having a maximum thickness of about 4 mm, and other configurations are the same as those of the second embodiment, and therefore detailed description thereof will be omitted.

[0033]

Since the single-use warming pocket warmer of the present embodiment has the above-mentioned structure, the heating bag 10C taken out from the outer bag has the instep of the foot 40 or 40C as shown in FIGS. 8 and 9. Depending on the size of the toe toe 42 or 42C, or depending on the size of the sock portion 31 or 31C corresponding to the toe toe of the foot 40 or 40C, it can be rotated and attached.

[0034]

EFFECTS OF THE INVENTION The heating bag of the present invention comprises a sock lining portion facing the arch of the foot or the instep of the foot or the arch of the foot, and a sock surface portion facing the toe of the foot. Since it is attached only to the bottom of the sock and is not attached to the part of the sock lining where the power of the sole is applied, the attached heating bag does not cause discomfort or scratches by pressing the sole of the foot when walking. Moreover, the sticking position does not shift or separate, and it is possible to endure long-term walking, intense exercise, and work.

The heating bag of the present invention is the arch of the foot, or
It is affixed only to the sock part that corresponds to the toe of the foot or the arch of the foot, or the sock part that corresponds to the toe of the foot, so the inside of the shoe is cramped even if you wear shoes. There is nothing to do.

Since the heating bag of the present invention is adhered via the soft sheet having a small heat conduction, it does not cause low temperature burns on the skin of the foot, and also has a high heat generation temperature and a heat generation duration of at least 8. Can be on time.

The heating bag of the present invention is formed into a half-moon shape or an oblong shape of a size to be attached to the arch of a foot, or
When you make an oval shape of a size that can be attached to both the small instep to the toe and the large instep to the toe,
Regardless of the size of the foot or the size of the sock, it can be attached so as to fit them.

In the product of the present invention, an inexpensive metal powder and a mixed powder containing the powder of its oxidation promoter as a main component are put inside, and a soft sheet having a small heat conduction, an adhesive coating layer and its release paper are laminated on the back surface. Since the heating bag can be vacuum-packed with the outer bag, the manufacturing cost is low and the product can be sold at an inexpensive price that can be used only once.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the product of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 is an explanatory view of a usage state seen from a side when the heating bag of the present invention of FIG. 1 is attached to a sock and the shoe is worn.

FIG. 4 is an explanatory view of a usage state in a plan view when the heating bag of the present invention of FIG. 1 is attached to a sock and the shoe is worn.

FIG. 5 is a plan view showing another embodiment of the product of the present invention.

6 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 7 is an explanatory view of a usage state in a plan view when the heating bag of the present invention of FIG. 5 is attached to a sock and the shoe is worn.

FIG. 8 is a view for explaining still another embodiment of the present invention and is a plan view of the heating bag of the present invention attached to a sock in a planar state.

9 is an explanatory view of a planar use state when the heating bag of the present invention of FIG. 8 is attached to another sock.

[Explanation of symbols]

 10,10B Heating bag 11,11B Breathable sheet 12,12B Flexible sheet 14,14B Adhesive coating layer 15,15B Release paper 16,16B Mixed powder 20,20B Outer bag 30,30C Socks 31 Corresponding to arch of foot Socks 32 Socks corresponding to the instep of the foot to the toes 40,40C Feet 41 Arch of the foot 42,42C Instep of the foot to the toes 50 Shoes

Claims (3)

[Claims] 1. An inner bag containing a mixed powder containing, as a main component, a metal powder that is oxidized by oxygen in the air to generate heat and a powder of an oxidation promoter, the bag having a part of the bag. A release paper that is made of a breathable sheet and the other part of the bag is made of a flexible sheet with reduced heat conduction, the back surface of the flexible sheet is coated with an adhesive, and the surface of the coating layer of the adhesive is peelable. Affixed with a sticker (hereinafter referred to as a heating bag)
And a non-breathable bag in which the heating bag is vacuum-packed (hereinafter referred to as an outer bag), and the heating bag is placed on the arch of the foot or the instep of the toe or the arch of the sock. A foot-use pocket warmer that can be warmed by sticking it on the corresponding part or the part corresponding to the toe from the instep of the sock. 2. The use-use foot warming pocket furnace according to claim 1, wherein the heating bag has a half-moon shape or an oblong shape having a size to be attached to the arch of the foot. 3. The one-use foot warming according to claim 1, wherein the heating bag has an oval shape sized so that it can be attached to both the small instep and the toe and the large instep to the toe. Pocket furnace.